| 摘要 |
The object is to suppress interference to other packets under transmission and decrease the error rate of packets. A mobile station first starts transmitting a packet A stored and then starts transmitting a packet B after a predetermined period of time taus. Thereafter, the mobile station starts transmitting packets C, D in order at intervals of the predetermined time period taus. Since each packet is assigned an individual code and transmitted at a relatively low transmission rate, packets are transmitted in an overlapping state when the predetermined period taus is set sufficiently short. The transmission power of the mobile station is in a gently stepped state. Since the period of the transmission power control in the mobile station is set shorter than the predetermined period of time taus, Eb/No can be maintained at or above a required value by increasing the power of the desired wave in the transmission power control, even in the case where transmitted signals of other packets concurrently transmitted work as interference waves.
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